Assembly & Set-up
Place the comparator frame on a stable surface with sufficient space to work. If
using digital models, a receptacle to power the digital indicator may be desired.
It is recommended the instrument be checked and adjusted when received
using the Standard lnvar Test Bar as follows (dial-type indicator example):
With the test bar in place between the terminals, set the large hand on the
outer scale and the hand on the lower small scale (0.010" movement) on “0”.
The upper small scale (0.100" movement) should be set on “2”. If adjustment is
necessary, loosen the hex locking nut on the terminal elevating screw at the base
and adjust the height of the terminal until the hand on the upper small scale
(0.100" movement) is on “2”. Hold base terminal in place and tighten lock nut